/*  Copyright  2009
 *  @Author
 *  Richard Changde Yin            e-mail yinchangde@hotmail.com
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

/**
 *@filename: alter_drop.h
 */

#ifndef __ALTER_DROP_H__
#define __ALTER_DROP_H__

#include <sql_alloc.h>

class Item;

typedef struct st_mem_root MEM_ROOT;

class Alter_drop :public Sql_alloc {
public:

  enum drop_type {KEY,   /* key*/
                  COLUMN /* column*/};
  const char *name;

  enum drop_type  type;

  Alter_drop(enum drop_type par_type,const char *par_name)
            :name(par_name), type(par_type) {}
  /**
    Used to make a clone of this object for ALTER/CREATE TABLE
    @sa comment for Key_part_spec::clone
  */
  Alter_drop *clone(MEM_ROOT *mem_root) const
    { return new (mem_root) Alter_drop(*this); }
};


#endif /* __ALTER_DROP_H__ */
